Description

4-Bromo-9H-Fluoren-9-One is a halogenated fluorenone derivative, a versatile and valuable organic intermediate in advanced chemical synthesis. Its core value lies in its functionalized aromatic structure, which serves as a critical building block for constructing complex molecules with tailored electronic and photophysical properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, particularly in the development of organic light-emitting diodes (OLEDs), pharmaceuticals, and specialty polymers.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates.
• Organic Electronic Materials: Serves as a core building block for electron-transporting materials, host materials, and emitters in OLED and OFET devices.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and herbicides.
• Ligand and Catalyst Development: Employed in the creation of novel ligands for metal-organic catalysis and coordination chemistry.
• Polymer and Dye Chemistry: Acts as a monomer or functionalizing agent for high-performance polymers and specialized dyes/pigments.
• Research & Development: A standard reagent in academic and industrial R&D for exploring new organic reactions and material properties.

Basic Information

Product Name	4-Bromo-9H-Fluoren-9-One
CAS No.	4269-17-4
Molecular Formula	C₁₃H₇BrO
Molecular Weight	259.10 g/mol
Synonyms	4-Bromofluoren-9-one; 9-Fluorenone, 4-bromo-; 4-Bromo-9-fluorenone; NSC 406902; 4-Bromo-9-oxofluorene; 4-Bromofluorenone
EINECS	Contact for details

Quality Control

Our 4-Bromo-9H-Fluoren-9-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to off-yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.